package com.ruoyi.demo.mapper;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

@Mapper
public interface CreateMeetSysUserMapper {

    // 根据 user_id 获取用户名
    @Select("SELECT user_name FROM sys_user WHERE user_id = #{userId}")
    String getUserNameById(Long userId);
}